25 pcs HSS Twist Drill Bit Sets ISO2000 CERTIFICATED Black,White,Tin coated Size:(mm):1.0- ... .5 Long life, fast 25 pcs HSS Twist Drill Bit Sets ISO2000 CERTIFICATED H2501-1 black finishedH2501-2 edge groundH2501-3 ... imquires about HSS drill sets, sds hammer drill sets,masonry drill bit sets, wood drill sets, auger bits sets, or another drill sets, please contact with ...